I'm not sure where the idea is coming from that Bluesky is going to sell people's data to AI companies. The proposal only adds a mechanism to declare what AI processing is allowed. The network is entirely public, so that makes sense to add. It's like the "Do Not Track" header.
A strangely common theme in my dreams is that there's an absolutely huge and amazing buffet, but then all kinds of shit happens that prevents me from eating anything at all